Fix: Urlencode user IDs in URLs

The Alma user id can contain more or less any unicode character, so we should urlencode it.

Author: danmichaelo

src/Users/Fee.php

@@ -31,7 +31,7 @@ public function __construct(Client $client, User $user, $id)
      */
     protected function urlBase()
     {
-        return "/users/{$this->user->id}/fees/{$this->id}";
+        return sprintf('/users/%s/fees/%s', rawurlencode($this->user->id), $this->id);
     }
 
     /**

src/Users/Fees.php

@@ -65,6 +65,6 @@ public function convertToResource($data)
      */
     protected function urlBase()
     {
-        return "/users/{$this->user->id}/fees";
+        return sprintf('/users/%s/fees', rawurlencode($this->user->id));
     }
 }

src/Users/Loan.php

@@ -31,7 +31,7 @@ public function __construct(Client $client, User $user, $loan_id)
      */
     protected function urlBase()
     {
-        return "/users/{$this->user->id}/loans/{$this->loan_id}";
+        return sprintf('/users/%s/loans/%s', rawurlencode($this->user->id), $this->loan_id);
     }
 
     /**

src/Users/Loans.php

@@ -50,6 +50,6 @@ public function convertToResource($data)
      */
     protected function urlBase()
     {
-        return "/users/{$this->user->id}/loans";
+        return sprintf('/users/%s/loans', $this->user->id);
     }
 }

src/Users/Request.php

@@ -42,6 +42,6 @@ protected function isInitialized($data)
      */
     protected function urlBase()
     {
-        return "/users/{$this->user->id}/requests/{$this->request_id}";
+        return sprintf('/users/%s/requests/%s', rawurlencode($this->user->id), $this->request_id);
     }
 }

src/Users/User.php

@@ -112,7 +112,7 @@ protected function onData($data)
      */
     protected function urlBase()
     {
-        return "/users/{$this->id}";
+        return sprintf('/users/%s', rawurlencode($this->id));
     }
 
     public function __get($key)